Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Seismic Retrofitting of Heritage Structures, Actual Techniques and Future Challenges for Earth and Masonry Constructions
https://orcid.org/http://orcid.org/0000-0002-6837-3423
https://orcid.org/http://orcid.org/0000-0002-4175-9182
https://orcid.org/http://orcid.org/0000-0002-8647-8173
While rammed earth structures are a sustainable design alternative, they are particularly vulnerable to horizontal forces such as seismic loads. Traditional seismic design techniques follow four main principles. (i) Improving connections and forming closed contours. (ii) Stabilizing structural elements by providing resistance and deformation capacity, and by improving the diaphragm action of floors. (iii) Allowing partial collapse through redundancy of structural elements. (iv) Counteracting horizontal loads by providing additional resistance with new structural elements. In this work, special attention has been given to external reinforcements such as TRM (Textile Reinforced Mortars), which have given good results in masonry walls. The references of the use of TRM in earthen walls are scarce, but TRM has been found to increase the compressive and shear strength and ductility of rammed earth. In this paper, special attention is given to the bonding phenomena based on experimental results with TRM reinforced masonry elements. Even in cases with severe damage due to fire exposure, TRM could improve the mechanical response of masonry walls under combined gravity loads and in-plane cyclic shear forces. Carbon fibers showed the best performance after high-temperature exposure, but debonding failure can occur when the TRM-masonry interface is damaged. In the case of TRM applied to rammed earth walls, the bonding between the two materials is expected to be poor; therefore, special connectors would be required to ensure anchorage of the TRM to the earth surface.
Seismic Retrofitting of Heritage Structures, Actual Techniques and Future Challenges for Earth and Masonry Constructions
https://orcid.org/http://orcid.org/0000-0002-6837-3423
https://orcid.org/http://orcid.org/0000-0002-4175-9182
https://orcid.org/http://orcid.org/0000-0002-8647-8173
While rammed earth structures are a sustainable design alternative, they are particularly vulnerable to horizontal forces such as seismic loads. Traditional seismic design techniques follow four main principles. (i) Improving connections and forming closed contours. (ii) Stabilizing structural elements by providing resistance and deformation capacity, and by improving the diaphragm action of floors. (iii) Allowing partial collapse through redundancy of structural elements. (iv) Counteracting horizontal loads by providing additional resistance with new structural elements. In this work, special attention has been given to external reinforcements such as TRM (Textile Reinforced Mortars), which have given good results in masonry walls. The references of the use of TRM in earthen walls are scarce, but TRM has been found to increase the compressive and shear strength and ductility of rammed earth. In this paper, special attention is given to the bonding phenomena based on experimental results with TRM reinforced masonry elements. Even in cases with severe damage due to fire exposure, TRM could improve the mechanical response of masonry walls under combined gravity loads and in-plane cyclic shear forces. Carbon fibers showed the best performance after high-temperature exposure, but debonding failure can occur when the TRM-masonry interface is damaged. In the case of TRM applied to rammed earth walls, the bonding between the two materials is expected to be poor; therefore, special connectors would be required to ensure anchorage of the TRM to the earth surface.
Seismic Retrofitting of Heritage Structures, Actual Techniques and Future Challenges for Earth and Masonry Constructions
https://orcid.org/http://orcid.org/0000-0002-6837-3423
https://orcid.org/http://orcid.org/0000-0002-4175-9182
https://orcid.org/http://orcid.org/0000-0002-8647-8173
While rammed earth structures are a sustainable design alternative, they are particularly vulnerable to horizontal forces such as seismic loads. Traditional seismic design techniques follow four main principles. (i) Improving connections and forming closed contours. (ii) Stabilizing structural elements by providing resistance and deformation capacity, and by improving the diaphragm action of floors. (iii) Allowing partial collapse through redundancy of structural elements. (iv) Counteracting horizontal loads by providing additional resistance with new structural elements. In this work, special attention has been given to external reinforcements such as TRM (Textile Reinforced Mortars), which have given good results in masonry walls. The references of the use of TRM in earthen walls are scarce, but TRM has been found to increase the compressive and shear strength and ductility of rammed earth. In this paper, special attention is given to the bonding phenomena based on experimental results with TRM reinforced masonry elements. Even in cases with severe damage due to fire exposure, TRM could improve the mechanical response of masonry walls under combined gravity loads and in-plane cyclic shear forces. Carbon fibers showed the best performance after high-temperature exposure, but debonding failure can occur when the TRM-masonry interface is damaged. In the case of TRM applied to rammed earth walls, the bonding between the two materials is expected to be poor; therefore, special connectors would be required to ensure anchorage of the TRM to the earth surface.
Seismic Retrofitting of Heritage Structures, Actual Techniques and Future Challenges for Earth and Masonry Constructions
RILEM Bookseries
Endo, Yohei (Herausgeber:in) / Hanazato, Toshikazu (Herausgeber:in) / Baeza, F. Javier (Autor:in) / Estevan, Luis (Autor:in) / Ivorra, Salvador (Autor:in)
International Conference on Structural Analysis of Historical Constructions ; 2023 ; Kyoto, Japan
Structural Analysis of Historical Constructions ; Kapitel: 87 ; 1088-1101
RILEM Bookseries ; 47
04.09.2023
14 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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